1、ADJUSTABLE AND LONG LASTING: Our boring head can be finely tuned and has a long lifespan, ensuring you can achieve accurate results and save on replacement efforts. 2、VERSATILE MACHINING: With our boring head, you can easily perform tasks such as boring, end face boring, cylindrical hole boring, and stepped hole boring, providing you with versatility and efficiency. 3、40CR STEEL MATERIAL: Our boring head is crafted from premium 40CR steel, which gives it exceptional strength and hardness, making it durable and reliable for a wide range of heavy duty machining applications. 4、FINE WORKMANSHIP AND HIGH ACCURACY: The boring head is meticulously crafted with fine accuracy to ensure accuracy up to 0.01mm, ensuring that your machining operations on milling machines or machining centers are executed with exceptional accuracy. 5、ENHANCED PRODUCTIVITY: By investing in our superior boring head, you can significantly enhance your overall productivity and efficiency in machining operations, delivering superior results in a shorter time frame. 1 x Boring Head 3 x Wrench 1 x Storage Box  Item Type: 12mm Boring Head Mode: F1 12Material: 40CR SteelLarge Outer Diameter: Approx. 50mm / 1.97inInner Hole: Approx. 12mm / 0.47inAccuracy: 0.01mmBoring Range: Approx. 10 to 125mm / 0.39 to 4.92inType: Milling tool